Science with ALMA Archive

Masa Hayashi (NAOJ)

East Asia ALMA Science Workshop, Korea (July 14, 2014)

2

Archive Science

• Masa Hayashi (NAOJ): Science with ALMA Archive

• Aya Higuchi (Ibaraki): Science case with ALMA archive

• Tohru Nagao (Ehime): Extragalactic Studies with ALMA Archival Data

• Erik Muller (NAOJ): Using ALMA Archive; ALMA Science Archive substructure and operation

3

ALMA Status

ALMA (ESO/NAOJ/NRAO), S. Komugi (NAOJ/ALMA)

45 Antennas band4 band10band8

ALMA: a giant array of 66 antennasincl. ACA (Morita array) with four 12-m total power antennas

4Science

CapabilitiesCycle 0 (2011-2013)

>16 x 12m antennas Bands 3 (3.1mm), 6 (1.3mm), 7 (0.87mm), 9 (0.44mm) Max 400 m baseline (~0.3″ resolution)

Cycle 1 (2013-2014) 32 x 12m antennas ACA (9 x 7m, 2 x 12m TP antennas) Bands 3 (3.1mm), 6 (1.3mm), 7 (0.87mm), & 9 (0.44mm) Max 1 km baseline (~0.1″ resolution)

Cycle 2 (2014-2015) 34 x 12m antennas ACA (9 x 7m, 2 x 12m TP antennas) Bands 3, 4 (2.1mm), 6, 7, 8 (0.74mm), & 9 Max 1-1.5 km baseline (~0.1″ resolution) Polarization (Band 3, 6, & 7, no ACA)

5Proprietary Period (12

months)

Accessible by anyone

Accessible by anyone

6Proprietary Period (12

months)

Most of Cycle 0 data (>100 projects)

are publicly available now.

7Publication with ALMA

Archive

As of 2014-07-09(ALMA publication statistics)

1/3 of ALMA publicationsare based on archival data.

There are only a few papers based on Cycle0 archival data.

PI Cycle0/1 (83)65%

Archive SV (37)32%

Archive Cycle0 (4)3%

Refereed ALMA publications (total: 124)

8

Jørgensen et al. 2012, ApJL

Discovery of the simplest sugar, Glycolaldehyde (HCOCH2OH) from the young “solar-mass” protostellar binary, IRAS 16293-2422

ALMA Archival Papers

ALMA SV Band 6 Data 16 antennas, 5.4 hours, 2

pointings

Pineda et al. 2012, A&AL

Mass ~ 3 M⊙

Source B (inflow - inverse P-Cygni profile)

Sources A (rotation)

9

Hirota et al. 2012, ApJL

ALMA Archival Papers

ALMA SV band 6 Data16 antennas, 20 minutes

Receding gas

Approaching gas

The first detection of vibrationally-excited water vapor emission in star forming regions

Revealing the disk and its kinematics around Orion KL Source I: A new tool to explore the vicinity of forming stars

10

Probing detailed physical and chemical conditions of protoplanetary disks

CO(3-2) Bergin et al. 2013, Nature

Tgas = 30 KMgas> 3.9 × 10−3 M⊙

ALMA Archival Papers

ALMA SV band 7 Data, 9 antennas, 2.4 hours(x10 more sensitive than the previous SMA observations) Spectrum of the central

region

HST image (1.7-2.2um)Debes et al. 2013, ApJ

SMA 2 nights =>

Hughes et al. 2011

CO(3-2)

160AU / 3” 100AU

NASA, ESA, Z. Levay (STScI/AURA)

TW Hydrae

11ALMA Archival

Papers

Iono et al. 2006

ALMA SV Band 7 Data17 antennas, 30 minutes

Clear [CII] 158μm line detection from the distant galaxy BR1202-0725 (z=4.7)

Wagg et al. 2012, ApJL

SMA 20 hours

12

Discovery of a clumpy molecular gas arm in merging galaxies

Stars will born in the clumps in the tidal molecular arms as predicted by numerical simulations

Espada et al. 2012, ApJL

ALMA Archival Papers

CO(2-1)

The Antennae

ALMA SV Band 6 Data14 antennas, 17

pointings

ALMA (ESO/NAOJ/NRAO)HST (NASA/ESA)

Numerical SimulationTeyssier et al. 2010, A&AL

Numerical SimulationMatsui et al. 2012,ApJ

Old Stars

Gas

Young Stars

The star formation efficiency in the tidal arm (~6 Gyr-1) is a factor of x10 higher than those in normal disk galaxies.

13

CO(3-2)

ALMA Archivehttp://almascience.nao.ac.jp/aq/

14

CO(3-2)

Quick Look with JVO

http://jvo.nao.ac.jp/portal/alma/archive.do

15

CO(3-2)

Quick Look with JVO

CO(3-2) emission from the AGB star R Sculptoris(Maercker et al. 2012, Nature)

16

Summary

• ALMA archival data of >100 Cycle 0 projects are now publicly available.

• 1/3 of ALMA publications are based on archival data.

• There are only a few Cycle0 archival papers publihed yet.

• JVO is useful to visually check the archival data.